Furuno manual Foreword, Word to the Owner of the CSH-5L/CSH-8L, Features

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FOREWORD

A Word to the Owner of the CSH-5L/CSH-8L

Congratulations on your choice of the FURUNO CSH-5L/CSH-8L Color Scanning Sonar.

For over 50 years FURUNO Electric Company has enjoyed an enviable reputation for innovative and dependable marine electronics equipment. This dedication to excellence is furthered by our extensive global network of agents and dealers.

Your scanning sonar is designed and constructed to meet the rigorous demands of the marine environment. However, no machine can perform its intended function unless installed, operated and maintained properly. Please carefully read and follow the recommended procedures for operation and maintenance.

We would appreciate hearing from you, the end-user, about whether we are achieving our purposes.

Thank you for considering and purchasing FURUNO equipment.

Features

The FURUNO CSH-5L and CSH-8L Color Scanning Sonars are full-circle electronic scanning sonars that detect and instantaneously display fish schools and underwater conditions in 16 colors.

Some of the prominent features of the CSH-5L and CSH-8L are as follows:

•Vivid 16-color display assists in recognition of bottom, and concentration and distribution of fish schools.

•Transducer frequency available in 55 kHz or 68 kHz for the CSH-5L and 85 kHz or 107 kHz for the CSH-8L.

•Various fishing and navigation data (appropriate sensors required) keep operator abreast of fishing and navigation conditions.

•High power MOS FET transmitter ensures reliable operation under any condition.

•Remote controller optionally available.

•Four user-programmable function keys for quick set up of equipment according to fishing conditions or specific function.

•Target lock feature tracks fish school.

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Contents Color Scanning Sonar 00080940402 Safety Instructions Turn off the hull unit before using the hand crank Table of Contents Marks and Data Index Word to the Owner of the CSH-5L/CSH-8L FeaturesForeword Vii System ConfigurationSystem configuration of CSH-5L System configuration of CSH-8L ViiiControl unit Operational OverviewControl Unit Remote Controller option Remote controllerLowering the transducer Basic Operating ProcedureTurning on the power Transmitting Sonar menuAdjusting backlighting of control unit System menuChoosing a display mode Mode description Description DisplayNorm COMBI-1Normal mode display sonar display Sonar displayCOMBI-1 display sonar display + audio display COMBI-1 display sonar display + audio displayChoosing the display range COMBI-2 display sonar display + echosounder displayCOMBI-2 display sonar display + echosounder display Detection rangeExamples of proper and improper gain Adjusting the gainRetracting the transducer, turning off the power Tilt range Setting the Tilt AngleAutomatic tilt on/off Auto tilt concept Range and tilt angleRange m ±2-10 ±4-14 ±6-20 ±10-26 How to discriminate fish echoes from the bottom Bottom and tilt angleCase 1 Tilt angle 30 to 40 degrees Case 2 Tilt angle 10 to 20 degreesTilt angle and surface fish example CSH-5L Points to considerTilt angle for surface fish Finding Range and Bearing to a Target Suitable tilt angleDepth, detection range and tilt angle Location of trackball dataOperating procedure Sonar Menu OverviewDescription Ref. Sonar menu descriptionDescription of sonar menu Description of sonar menu con’t from previous This page intentionally left blank How TVG works Fine Tuning the Sonar PictureEliminating Unwanted Echoes 1 AGC Displaying Surface Fish ClearlySuppressing Bottom Tail Pulse length 3 2ND AGCHow to adjust TX output Rejecting Sonar Interference and Noise Identifying noise sourceRejecting noise with the interference rejector Rejecting noise with the noise limiterRejecting interference with TX cycle Interference ringsChoosing Beamwidth Deleting Weak EchoesEcho Averaging Horizontal beamwidthThis page intentionally left blank Target lock mark and target lock data Advanced Sonar OperationTracking a Fish School target lock Target lock and tilt angle Detecting Fish Schools Aurally Fish alarm zones Fish AlarmFish alarm zone Fish mark and fish mark data Measuring Fish School SpeedEntering a fish mark Deleting individual fish marks How to use the off-center functionRelocating Fish School for Easy Observation How to use the event mark Event Mark, Own Ship Position MarkEvent mark Entering an event markEvent marks Entering an own ship position markDeleting an event mark Ship Collectively Deleting MarksTrack Function Keys F1-F4 Operating the function keysProgramming for fishing ground or target fish Erase Marks dialog boxProgramming specific function Useful programs main items onlyTX Output Pulse Length TX Cycle TVG Near TVG FAR HOR Beamwidth Color Curve ResponseConfirming function key program Function key assignment confirmation screenStabilizer mark Suppressing Effects of Pitching and Rolling StabilizerHow the stabilizer works Advanced Sonar Operation Display range and shift concept Echosounder ModeChoosing the Range Adjusting the Gain Sounder menuMeasuring depth Picture Advance SpeedMeasuring Depth Suppressing Interference Suppressing Low Level NoiseInterference ClutterErasing Weak Echoes Weak echoesOther Items on the Sounder Menu Sounder menu descriptionCurve DraftMarks and data on the normal display Marks and DataMarks and Data on the Normal Display Description of marks and data on the normal display Points to North Heading MarkMarks and Data Press the R/B key. Own ship position and trackball mark are Marks and Data on the Echosounder and Audio Displays Marks and data on the echosounder and audio displaysOn the System menu Bottom echoes Interpreting the DisplayBottom Echo Fish School Fish echoesSea Surface Reflections WakeSea surface reflections WakeFalse Echo by Sidelobe Noise and InterferenceSidelobe echo Noise and interferenceMarks menu Marks and System MenusMarks Menu Marks menu description System Menu System menu Description of System menuDimmer Disp SelectDescription of System menu con’t from previous Cleaning the Equipment MAINTENANCE, TroubleshootingGeneral Maintenance Lubrication points, zinc plate Hull Unit MaintenanceHull unit maintenance points Hand crank Manually raising the transducerHull unit Fuse Replacement Fan ReplacementUnit Fuse Type Code No Type Code NoTroubleshooting Symptom Check, RemedyError Messages Message Meaning, Remedy OvervoltageTransducer not retracted High speedDiagnostic Tests Choosing a diagnostic testContinuous test example CSH-5L, 55 kHz transducer Description of diagnostic testsSingle test, Continuous test Panel test Panel testColor test White RED Green BlueColor test Pattern testSIO test SIO testEcho tests Echo testsSpecifications of Color Scanning Sonar CSH-5L/8L Hull Unit Interface This page is intentionally left blank Menu Tree Sonar menuSounder menu AP-1AP-2 Marks menuSystem menu Index IN-1

CSH-5L/CSH-8L specifications

Furuno CSH-5L and CSH-8L are advanced marine radar systems known for their cutting-edge technology and user-friendly interfaces. Designed primarily for maritime applications, these radar units cater to a wide range of vessels, from commercial ships to fishing boats. The primary distinguishing feature of the CSH-5L and CSH-8L radar systems lies in their ability to provide high-resolution images and precise detection of targets, ensuring navigational safety and operational efficiency on the water.

One of the standout technologies incorporated into both models is the pulse compression technique. This feature significantly enhances target resolution and minimizes blind spots, allowing the radar to detect smaller objects at greater distances. With the CSH-5L and CSH-8L's powerful signal processing capabilities, users can expect exceptional performance even in challenging weather conditions, ensuring reliable operation during storms or fog.

The CSH-5L model operates at a frequency range of 5 GHz, while the CSH-8L uses an 8 GHz frequency. Both radars are equipped with a rotating antenna that provides a wide coverage range, allowing for efficient monitoring of the surrounding marine environment. Their high sensitivity and low noise levels enhance target detection, making them particularly useful for locating small fishing vessels or buoys.

Another important characteristic of the Furuno CSH-5L and CSH-8L is their user-friendly interfaces. Both models feature intuitive controls, allowing operators to adjust settings easily and access critical information quickly. The displays are designed for clarity, enabling users to distinguish between targets and navigate effectively.

Additionally, the radar systems include advanced features such as automatic target tracking and target acquisition capabilities. This functionality allows users to monitor multiple targets simultaneously, providing essential situational awareness for safe navigation. The CSH-5L and CSH-8L also support integration with other onboard systems, including ECDIS (Electronic Chart Display and Information System), which enhances the overall effectiveness of maritime navigation.

In summary, the Furuno CSH-5L and CSH-8L radar systems represent the forefront of marine radar technology, offering exceptional detection capabilities, user-friendly controls, and robust integration options. Their advanced features ensure that mariners can navigate confidently, making them a vital asset for anyone operating in the marine environment.
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